ZA902269B - Procedure and device for timing recovery in the reception of base band digital signals - Google Patents

Procedure and device for timing recovery in the reception of base band digital signals

Info

Publication number
ZA902269B
ZA902269B ZA902269A ZA902269A ZA902269B ZA 902269 B ZA902269 B ZA 902269B ZA 902269 A ZA902269 A ZA 902269A ZA 902269 A ZA902269 A ZA 902269A ZA 902269 B ZA902269 B ZA 902269B
Authority
ZA
South Africa
Prior art keywords
signal
sampling instant
timing recovery
timing
reception
Prior art date
Application number
ZA902269A
Inventor
Roberto Colombo
Colombo Roberto
Giambattista Di Donna
Di Donna Giambattista
Original Assignee
Sits Soc It Telecom Siemens
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sits Soc It Telecom Siemens filed Critical Sits Soc It Telecom Siemens
Publication of ZA902269B publication Critical patent/ZA902269B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
    • H04L7/0062—Detection of the synchronisation error by features other than the received signal transition detection of error based on data decision error, e.g. Mueller type detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
    • H04L7/0334—Processing of samples having at least three levels, e.g. soft decisions
    • H04L7/0335—Gardner detector

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Communication Control (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Burglar Alarm Systems (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The timing recovery device of the sampling type uses two signal samples per symbol time and takes a control signal (for a local oscillator which generates the timing signal) given essentially by the product of a reconstruction error signal [ epsilon n(to)] appraised at the generic sampling instant (to), multiplied by the difference between the values of the reconstructed symbols, taken at one-half symbol interval [yn(to+T/2), yn(to-T/2)] respectively before and after said sampling instant. The control signal [Un(to)] thus obtained allows generation of a timing signal (CK) which positions with extreme accuracy and stability the sampling instant of the received signal at the minimum points of the mean square error curve, even under selective fading conditions.
ZA902269A 1989-03-24 1990-03-23 Procedure and device for timing recovery in the reception of base band digital signals ZA902269B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8919899A IT1228877B (en) 1989-03-24 1989-03-24 PROCEDURE AND TIMING RECOVERY DEVICE FOR THE RECEPTION OF BASIC BAND NUMERIC SIGNALS.

Publications (1)

Publication Number Publication Date
ZA902269B true ZA902269B (en) 1990-12-28

Family

ID=11162175

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA902269A ZA902269B (en) 1989-03-24 1990-03-23 Procedure and device for timing recovery in the reception of base band digital signals

Country Status (10)

Country Link
US (1) US5191596A (en)
EP (1) EP0389027B1 (en)
AT (1) ATE117483T1 (en)
AU (1) AU633886B2 (en)
DE (1) DE69016070T2 (en)
ES (1) ES2066950T3 (en)
GR (1) GR3014956T3 (en)
IT (1) IT1228877B (en)
NO (1) NO302330B1 (en)
ZA (1) ZA902269B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0124379B1 (en) * 1993-07-12 1997-12-01 김광호 Digital data receiver
TW255079B (en) * 1994-09-30 1995-08-21 At & T Corp Communications unit with data and clock recovery circuit
US5768323A (en) * 1994-10-13 1998-06-16 Westinghouse Electric Corporation Symbol synchronizer using modified early/punctual/late gate technique
SG69991A1 (en) * 1995-11-21 2000-01-25 Thomson Consumer Electronics Infomational disc handling apparatus for a mltiple disc player
DE69737171T2 (en) * 1996-07-22 2007-10-04 Nippon Telegraph And Telephone Corp. Circuit for clock recovery
KR100585489B1 (en) * 1997-12-17 2006-08-23 엘지노텔 주식회사 Apparatus for detecting timing
SE519682C2 (en) * 1998-05-26 2003-04-01 Nera Asa Digital demodulator in a multi-channel system
KR100519805B1 (en) * 2002-11-26 2005-10-11 한국전자통신연구원 Symbol timing synchronous apparatus and method, and symbol Timing recovery apparatus for multi-level modulation scheme
KR100655601B1 (en) 2004-12-16 2006-12-08 한국전자통신연구원 Device and method for timing recovery based on window

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333060A (en) * 1980-07-10 1982-06-01 E-Systems, Inc. Phase locked loop for recovering data bit timing
IT1159580B (en) * 1983-05-05 1987-03-04 Cselt Centro Studi Lab Telecom REFERENCES TO EQUALIZERS FOR THE CORRECTION OF NUMERICAL SIGNALS WITH A POST DECISION BRANCH AND A PARALLEL PRE DECISION BRANCH
NL8401310A (en) * 1984-04-24 1985-11-18 Philips Nv DEVICE FOR GENERATING A CLOCK SIGNAL.
JPS61129936A (en) * 1984-11-29 1986-06-17 Toshiba Corp Data recovery circuit
FR2613560B1 (en) * 1987-03-31 1989-06-23 Cit Alcatel AUTOMATIC EQUALIZER FOR DIGITAL TRANSMISSION
US4789994A (en) * 1987-08-12 1988-12-06 American Telephone And Telegraph Company, At&T Bell Laboratories Adaptive equalizer using precursor error signal for convergence control
EP0312671B1 (en) * 1987-10-19 1993-01-27 International Business Machines Corporation Predictive clock recovery circuit
US4805191A (en) * 1987-11-25 1989-02-14 Motorola, Inc. Modem with improved timing recovery using equalized data

Also Published As

Publication number Publication date
AU633886B2 (en) 1993-02-11
EP0389027A2 (en) 1990-09-26
DE69016070T2 (en) 1995-06-22
IT1228877B (en) 1991-07-05
IT8919899A0 (en) 1989-03-24
US5191596A (en) 1993-03-02
ES2066950T3 (en) 1995-03-16
NO302330B1 (en) 1998-02-16
EP0389027A3 (en) 1991-01-30
AU5148290A (en) 1990-09-27
NO901354L (en) 1990-09-25
GR3014956T3 (en) 1995-05-31
EP0389027B1 (en) 1995-01-18
ATE117483T1 (en) 1995-02-15
DE69016070D1 (en) 1995-03-02
NO901354D0 (en) 1990-03-23

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